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2151.

What is ***

Answer» This symbol represents multiplication sign
2152.

Mention the process of rainbow formation.

Answer» \tA rainbow is a natural spectrum of sunlight in the form of bows appearing in the sky when the sun shines on rain drops.\tIt is combined result of reflection, refraction and dispersion of sunlight from water droplets, in atmosphere.\tAlways it formed in the direction opposite to the sun.\tTo see a rainbow, the sun must behind us and the water droplets falls infront of us.\tWhen a sunlight enters into a spherical rain¬drop, it is refracted and dispersed. The different colours of light bent in different angles.\tWhen different colours of light fall on the back inner surface of drop, it (water drop) reflects (different colours of light) internally (total internal reflection).\tThe water drops again refracts the different colours, when it comes out from the raindrop.\tAfter leaving this different colours from the raindrop as rainbow, reach our eye. Thus, we see a rainbow.
2153.

How do we get vitamin D in sunlight?

Answer» When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun\'s ultraviolet B (UVB) rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur. Vitamin D has many roles in the body and is essential for optimal health
2154.

Definition of lymph.

Answer» Lymph is a clear to pale-white fluid which circulates throughout the lymphatic system. The main role of the lymphatic system is to act as a filter against microbes, organic wastes and other debris.
2155.

What is mechanics?

Answer» Who repair car , motorcycle etc
2156.

Function of platelets

Answer» Helps to clot blood
Koi na
Platelets help in clotting of blood
Thanks
The principal function of platelets is to prevent bleeding
2157.

What are the function of WBC

Answer» It prevents the disease to come in our body
Koi na
Thanks
These cells help fight infections by attacking bacteria, viruses, and germs that invade the body.
2158.

Examples of Displacement Reaction...??

Answer» Thank you....☺️☺️☺️☺️☺️
Zn + H2SO3 ==> ZnSO3 + H2
A displacement reaction is the one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when Iron is added to a copper sulphate solution, it displaces the copper metal.A + B-C → A-C + BThe above equation exists when A is more reactive than B.A and B have to be either:\tHalogens where\xa0C\xa0indicates a cation.\tDifferent metals wherein\xa0C\xa0indicates an anion.
Ge ishika
CuSo4 + Zn = ZnSo4 + CuZinc is more reactive than copper.
2159.

Define soil degradation.

Answer» Soil retrogression and degradation are two regressive evolution processes associated with the loss of equilibrium of a stable soil. Retrogression is primarily due to soil erosion and corresponds to a phenomenon where succession reverts the land to its natural physical state
It is loss of organic matter, decline in soil fertility, and structural condition, erosion, adverse changes in salinity, acidity or alkalinity, and the effects of toxic chemicals, pollutants or excessive flooding
2160.

How NaCl is formed by electrolysis ?explain with the help of diagram?

Answer» Electrolysis of Salt Water. In chemistry,\xa0electrolysis\xa0is a method of separating bonded elements and compounds by passing an electric current through them. An ionic compound, in this case\xa0salt, is dissolved with an appropriate solvent, such as\xa0water, so that its ions are available in the liquid.\xa0The electrolysis of brine is a large-scale process used to manufacture\xa0chlorine\xa0from salt. Two other useful chemicals are obtained during the process,\xa0sodium hydroxide\xa0(NaOH) and\xa0hydrogen\xa0(H2).
2161.

Difference Between hard water and soft water .

Answer» \tHARD WATERSOFT WATERIt is rich in mineralsContains very few elementsSoap is not so effectiveSoap is easily effectiveNo foam and lather from soapsBubbly lather from soapsLeaves spots on the washed dishes after they are driedDoes not leave any spots on dishes after they are driedContains minerals like magnesium and calciumContains sodium ion\t
2162.

Name the acid present in spinach and tomato?

Answer» Palak is right?
Oxalic acid is present in both spinach and tomato?
The acid present in spinach is oxalic acid The acid present in tomato is citric may be ?
2163.

Why free fall is as fast as normal falling of objects

Answer» Because the amount of gravitational force acting on both are equal in magnitude .(as gravitational force does not depend upon mass of an object. )
2164.

Why graphite is a good conductor of electricity? Explain

Answer» The reason graphite is a good conductor of electricity because of the presence of electron as each carbon atom forms only these covalent bonds with three other carbon atoms is right
Ishika your answer not write
Graphite is good conductor of electricity become it has free or delocalized electron.??
And i can explain
Conductor is good conductor of electricity. Ex- metal etc
2165.

What is target organ

Answer» Hormones are chemicals secreted by the endocrine glands, which are carried by the blood to the respective\xa0organs\xa0to regulate certain physiological processes. The\xa0organs\xa0on which the hormones act are known as the\xa0target organs
2166.

What is prism ?????

Answer» A 3d trangular piece of glass which has the capability of splitting the white light into seven different colours.☺️☺️☺️☺️
It is in triangle in shape and made up of glass
2167.

Can anyone tell me ?which nerves carry impulses from spinal cord to effector organ ??

Answer» Spinal nerves
Spinal nerves
Welcome dear
Thanks sis..☺️☺️
Spinal nerves
2168.

?Name the parts of brains system☺️☺️

Answer» Cerebrum , cerebellum and madulla obleganta
Cerebrum, cerebellum and last medulla.
Thank you??
Right answer
Cerebrum,cerebellum and forgot
2169.

What is neutralisation solution

Answer» The reaction in which acid and base react with each other
Neutralisation is chemical rection in why acid and a base react quantitively with each other.?????
When any acid and base react together they form salt and water and this processs is known as nutrilisation process
2170.

Copper and aluminium wires are usually employed for electricity transmission.why?

Answer» Because both are good conductor of electricity and are cheap
Because they are good conductors of electricity and are cheap
2171.

Is cyclone and tornado same? If not then write difference.

Answer» No they are not same.Actually CYCLONE- It is a large destructive storm that is comprised of large winds rotating around a centre of low pressure.TORNADO - It often occur in groups.☺️☺️☺️☺️
2172.

What is tornado?

Answer» The definition of tornado is a twirling, narrow funnel of wind with speeds of 100 to 300 miles per hour that can damage anything in its path.
2173.

Currency of makaow?

Answer» Macanese pataca?
Macanese pataca
2174.

What do u mean by fundamental units?

Answer» The units which can neither be derived from other units nor they can be further resolved into simpler units are called fundamental units. Examples: Mass, length etc.
2175.

Advantage of nuclear energy.?

Answer» 1)One of the most low-carbon energy sources.2)It also has one of the smallest carbon footprints.3) It\'s one of the answers to the energy gap.4) It is essential to our response to climate change and greenhouse gas emissions.5)Reliable and cost-effective
2176.

Discuss some major merits of the mendeleev\'s periodic table

Answer» Mendeleev\'s periodic table was that when these gases were discovered, they could be placed in a new group without disturbing the existing order.
2177.

Name two matel which are found in nature in the free state

Answer» Diamond and gold
May be silver and gold
2178.

What is speciation???

Answer» Galdi bata do
Suno AP tumara full name kya ha
Kaha se ho tum rahul
The process by which a new species develops from the existing species is known as speciation.\xa0Speciation is caused due to three factors, which are:\xa0\tGeographical isolation: Caused due to reproductive isolation in\xa0separated groups of a population.\tGenetic drift: Caused due to\xa0changes in the gene flow imposed by the isolation mechanism.\xa0\tNatural selection: Caused due to genetic variation within a population of an organism.\xa0
2179.

What is Retrovirus??

Answer» Retrovirus, any of a group of viruses that belong to the family Retroviridaeand that characteristically carry their genetic blueprint in the form of ribonucleic acid (RNA). Retroviruses are named for an enzyme known as reverse transcriptase, which was discovered independently in 1971 by American virologists Howard Temin and David Baltimore. Reverse transcriptase transcribes RNA into deoxyribonucleic acid (DNA), a process that constitutes a reversal of the usual direction of cellular transcription (DNA into RNA).
It is the virus containing RNA as the genetic material ????????
2180.

What is atmospheric refraction????

Answer» Nice
Most wlcm☺️☺️☺️
Thx ???
The refraction of light caused by the earth\'s atmosphere is called atmospheric refraction.???
2181.

Example ozone depletion.

Answer» Thanks ???
Depletion of ozone layer from atmosphere due to human activities....
2182.

What is carbon monoxide ??

Answer» Most wlcm??
Poisonous gas harming atmosphere
Thanks ?
Carbon Monoxide is poisonous, colourless, tasteless, odourless gas.????
2183.

What is the radius of curvature of plane mirror??

Answer» Thx ??
☺️☺️The radius of curvature of plane mirror is equal to 0.
2184.

Explain about heart

Answer» ?
The heart is an organ that pumps blood throughout the body. It comprises four chambers:\tAtria (upper chambers)\tVentricles (lower chambers)The wall of the heart is made up of three layers:\tEpicardium-\xa0This is a protective layer made of connective tissues.\tMyocardium-\xa0This layer forms the heart muscles.\tEndocardium-\xa0This is the innermost layer and protects the valves and the heart.
2185.

Name the unit of (a) electrical resistance (b) resistivity (c) electrical power (d) current

Answer» A . Ohm B. Ohm meter C. Watt D.ampere or coulomb per second
State and derive joule s law.
(a) Ohm(b) Ohm - metre(c) Watt(d) Ampere Hope this Helps??
2186.

Extra question answers

Answer»
2187.

What is the speed of light???

Answer» Gm u all
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is defined as 299792458 metres per second
Thx to both
3 × 10power8 km/h
299700 km/sec
2188.

Define nuclear energy.

Answer» Nuclear Energy is the energy in the core of an atom.Nuclear Energy is discharged by nuclear reactions either by fission or fusion. In nuclear fusion, atoms combine together to form a larger atom. In nuclear fission, the division of atoms takes place to form smaller atoms by releasing energy. Nuclear power plants produce energy using nuclear fission. Sun produces energy using mechanism of nuclear fusion.
the energy released during nuclear fission or fusion, especially when used to generate electricity
2189.

What is direct current and alternating current?

Answer» Alternating Current (AC) is a type of electrical current, in which the direction of the flow of electrons switches back and forth at regular intervals or cycles. ... Direct current (DC) is electrical current which flows consistently in one direction.
2190.

What will happen if platelets were absent in the blood??

Answer» If there is no platelets then there is no blood clotting so if we get injured the blood will remain to flow it will never stop flowing
Blood pletelets are required for the process of blood clotting. If there no pletels there wil ne no clot formation
Gm
Platelets agr na ho to hamare body blood ki kami ho jayega.
2191.

How does transfer of charge takes place?

Answer» Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred are conduction, friction, and polarization. ... It occurs without direct contact between the two objects.
Whenever electrons are\xa0transferred\xa0between objects, neutral matter becomes\xa0charged. For example, when atoms lose or gain electrons they become\xa0charged\xa0particles called ions. Three ways electrons can be\xa0transferred\xa0are conduction, friction, and polarization.\xa0It\xa0occurs\xa0without direct contact between the two objects.\xa0There are three methods by which\xa0charges\xa0can be\xa0transferred\xa0to build up static electricity: charging by friction, by conduction, and by induction. Charging by Friction When two uncharged objects rub together, some electrons from one object can move onto the other object.
2192.

The only 2 animals that can see behind itself without turning its head. Who is this

Answer» These animals are rabbits and parrots , they can see behind itself w/o moving .
Wow
? rabbit and ? parrots
2193.

Name the border situated between india- china.

Answer» MacMahon line I think
2194.

Name the metal which is liquid in state.

Answer» Mercury is the metal which is liquid in state at room temperature , and if it blast , it causes severe problems
Mercury
Mercury
Mercury
Mercury
2195.

Speed of sound in water?

Answer» Medium
Don\'t worry,the right answer is about 1480m/ s
Don\'t know sorry?
2196.

Science physics

Answer»
2197.

Jo us elephant aur uske baby ke saath hua hai then we deserve covid 19 ??

Answer» It\'s not like that , why should we deserve covid 19 . One who had done this deserves this even notthis he deserves more painful disease . And please this app is made for study purpose
Yes you are right..
2198.

Difference between blood and lymph.

Answer» Lymph-tissue fluid which enters into lymph vessel is known as lymph which again get mixed with blood in vein
Blood is a red coloured liquid which circulates in our body. It is red because it contains a pigment called haemoglobin in its red cells whereas\xa0lymph is a light yellow liquid. It is a medium of circulation in human body which flows only in one direction - from body tissues to the heart.
2199.

How blood vessels and produce on tissue

Answer» Arteries are the vessels which carry blood away from the heart to various organs of the body. Since the blood emerges from the heart under high pressure, the arteries have thick, elastic walls. Veins collect the blood from different organs and bring it back to the heart. They do not need thick walls because the blood is no longer under pressure, instead they have valves that ensure that the blood flows only in one direction. On reaching an organ or tissue, the artery divides into smaller and smaller vessels to bring the blood in contact with all the individual cells, called capillaries.
2200.

What is phytohormons??????

Answer» Whats all
Kaise ho
Hello?
Hi
Plant hormones are also known as phytohormones.phytohormones are signal molecules, produced within plants, that occur in extremely low concentrations.